A mode-selective circuit for TE01 gyrotron backward-wave oscillator with wide-tuning range

被引：54
作者：
Chen, N. C. [1 ]
Yu, C. F. [1 ]
Yuan, C. P. [1 ]
Chang, T. H. [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 10期
关键词：
backward wave oscillators; gyrotrons; microwave circuits; TWT AMPLIFIER; GUIDE;
D O I：
10.1063/1.3097236
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This study proposes a mode-selective circuit to suppress the competing modes in a TE01 gyrotron backward-wave oscillator (gyro-BWO). The circuit, also functioning as an interaction structure, comprises of several transverse slices. It eliminates the restrictions of the mode competitions and allows a longer interaction structure to optimize interacting efficiency. Mode-selective effect will be analyzed. Experimental results indicate that the Ka-band TE01 fundamental harmonic gyro-BWO is capable of continuous tuning from 31.4 to 36.4 GHz with a peak efficiency of 23.7%, corresponding to 100 kW at I-b=4.5 A and V-b=93.6 kV.
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页数：3
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